Does anyone know the plug settings on a Yamaha marine engine ,2 stroke 8 HP?

Question

Does anyone know the plug settings on a Yamaha marine engine ,2 stroke 8 HP?

Answer 1

write for a hand book  from Yamaha, ha ,ha

Answer 2

NGK is a good spark plug brand and this is what you are looking for specifically if you go for this brand.

Part No:     B7HS-10 #

Stock No:   2129

Gap:           .039

Answer 3

I would guess the plug/s would be gapped at a standard 0.025 inch. or .6mm. If the gap is too big it will run rough and too small it might not fire under compression.

Try the 'average' gap and see how it runs.  Yamaha might be able to give you some advice?

Answer 4

25 thou